Oil conveying member for journal boxes



June 11, 1940.

T. E. NEWBERRY OIL CONVEYING MEMBER FOR JOURNAL BOXES Filed Aug. 14,1.936

INVENTOR BY HomasEAkd/beny 44,

2 Sheets-Sheet; 1

ATTORNEY n 1'. E. NEWBERRY OIL CONVEYING MEMBER FOR JOURNAL BOXES FiledAug. 14. 1936 2 Shutg-Shqat 2 INVENTOR TlzomasENewbeny ATTORNEY PatentedJune 11, 1940 unirso STATES PATENT "OFF-ICE;

OIL CONVEYINGIMEMBER FOR JOURNAL i e BOXES Thomas E. Newberry,'Northumberland, Pa., as-

signor to. National Malleable and Steel Castings Company, Cleveland,Ohio, at corporation of Ohio Application August 14, 1936,Serial No.95,985"

3 Claims. (chaos-sci This invention relates to a dipper or paddle '10 itcan be'directed to the surfacesv to'be lubricated.

It has been found that in service the dipper is caused to vibrateprincipally by the shocks of the wheels passing over the rail'joints.These rail joints are for the most ,part spaced at regular intervals sothat when the train reaches a speed such that the period of impulsescoincides with the period, or multiple of the period, of vibration ofthe dipper the amplitudebf vibration increases and if any weak' spots orpoints of stress concentration are present, cracks will soon appear andeventually result in fatigue of the metal and early-breakage .of thedipper. This was particularly true of dippers provided with flangededges. These flanges were intended to strengthen the dipperandforma'rigid structure. I have found, however, that fairly small amplitudesof vibration, because of the rigidity of the flanged design of dipper,set up localized 3o zones of relatively high stress, causing cracks toappear that soon result in failure offthe member. In addition theoperation of forming the dipper flanges and bending it to the desiredshape produces internal stresses in the metal which may result inadditional sources of weak After testing a large number of differentdeconstruction will be'more fully discussed in conjunction with thedrawings, in which:

Figure 1 is a vertical sectional view of a part 45 of a journal boxusing a dipper embodying my invention.

Figure 2 is a face view of the dipper. Figure 3 is an end view of oneend only of the dipper with a portion broken out; and 5Q Figure 4 is aview of the dipper in perspective.

In Fig. 1 there is shown a journal box I, journal 2, and the usualbearing member 3 and wedge 4. The journal box is formed with a deepenedportion 5 at the front end thereof, which con- 55 stitutes a part of theoil reservoir. The dipper substantially parallel to portions II.

end of portions I5 it is curved radially outward 'of the end I1 and theside edges of the 6 is secured to the end of the journal by means ofbolts I. Between the bolts and the-end of the journal there ispositioned a washer 8 for a purpose to be later described. j

Referring particularly to Figs. 1 and 4, the central or hub part of thedipper is formedwith openings 9 which receive the bolts I. .On eitherside of the hub and outwardly of the bolt holes the dipper is vbent awayfrom the journal in sweeping curves I0 which -merge into axiallyextending portions II. From these latter por' tions the dipper is curvedradially outward at each end at I2, these curves also being ofsubstantialjradii. Fromcurves I2 the dipper extends straight outward ateach end as at I3 until it reaches the curves where it is bent backtoward the ournal to form portions l5 At the at 16 to merge with theblades l1 and I8 that ,dip into the reservoir and carry the oil to thetop of the box. As shown in Figs. 2 and 4, the

two ends'of the dipper are preferably of different form, the end I'Ihavinga pair of wings I'I extending externally beyond the main bodywhile the end I8 is preferably straight-sided and of;

about the same width as portion I3. Both ends have their extremitiescurved along an arc whose center is at the journal axis. The wingportion:

are preferably bevelled, as shown at 22 and at 23, respectively.

It vn'll be noted that portion l5 extends inward to a point whereitoverlies a projection IS on wedge 4. This projection is formed with agroove 20 that conducts oildropping from the dipper'to the bearingsurfaces on the brass and journal. The general shape of the dipper asabove described is required in order to provide the overlap with theprojection on the wedge." While I have specifically referred to curvesI0 and I2 being formed on large radii, it will be understood that it isdesirable to form curves I4 and I6 on as large radii as possible andstill maintain the necessary clearance between the dipper and the end ofprojection I9. It is preferable, as clearly illustrated in Fig. 1, tomake curve I0 of the largest radius of curvature with the radii ofcurves l2 and I4 progressively.

decreasing in length. The sweeping curves avoid over-stressing the metaland eliminate one of the causes of cracks in old-style dippers.

If my improved dipper were made the same width over its entire length,there would be a tendency for it to vibrate about lines drawn throughthe openings 9 since the weakest sections would be at these points. Itis not desirable to increase the width of the dipper over its entireextent to strengthen the weak section, for, by this means, weight wouldbe added at a considerable distance from the center of rotation and thecentrifugal force tending to straighten out the dipper would be therebyincreased. Furthermore, when subjected to a shock as from a rail joint,any increase in weight at the ends of the dipper will increase thestresses resulting from the vibration of these heavier ends.

I have found that by widening the hub portion of the dipper betweenpoints radially outward of openings 9 and then joining the edges of thewidened portion with the edges of the axially extending portions I l bysweeping curves 2!, that adequate strength is obtained through the boltholes without adding weight at undesirable points. The central portionof the dipper can be said to be U-shaped with the base of the U widened,the widened portion merging into and terminating in the arms of the U.

To further assist in preventing vibration of the dipper ends about linesthrough the bolt holes the member 8 is positioned between the heads ofbolts 7 and the outer surface of the dipper and is constructed so thatitsends bear on curved portions II]. In Fig. 1 member 8 is shownextending distance a beyond the beginning of curve I0. By this means thedipper is clamped tightly against the journal and vibration normallywill take place about the lines of contact between the member and dipperrather than through the bolt holes.

The improved design is more flexible than the flanged dipper, but for agiven amplitude of vibration the dipper will be stressed far less than aflanged dipper vibrating the same amount. This, in combination With thesweeping curves and the decrease in width from the hub portion permitsthe stresses set up by vibration to be distributed uniformly over theunsupported part of the dipper.

The terms and expressions which I have employed are used as terms ofdescription and not of limitation, and I have no intention, in the useof such terms and expressions, of excluding any equivalents of thefeatures shown and described or portions thereof, but recognize thatvarious modifications are possible within the scope of the inventionclaimed.

What I claim is:

1. In a device of the class described a journal box having an oilreservoir at the bottom thereof, a journal extending into said box, amember on the end of said journal adapted to raise oil from saidreservoir to points for delivery to said journal, means securing saidmember to said journal, said member having portions curved away fromsaid journal outwardly of said securing means, and a washer elementbetween said securing means and member, the ends of said elementengaging said curved portions for clamping said member tightly againstthe journal.

2. A dipper for attachment to a railway journal for conveying oil from areservoir to a distributing point which comprises a member formed of asheet of metal bent to present portions in a plurality of differentvertical planes, said member having a central hub portion, a pair of oilconveying ends, and intermediate portions, curved portions joining saidhub portion, intermediate portions and said ends, said hub portion beingof greater width than said intermediate portions, said member in sideelevation presenting no surface of greater width than the thickness ofsaid metal sheet, and means for attaching said dipper to a journalcomprising an element adapted to be forced against said hub portion, theends of said element overlying said curved portions adjacent said hubportion.

3. A dipper for a railway journal box comprising a fiat plate havingblades at the ends thereof adapted to lift oil in the journal box, saidplate having a flat base portion adapted to be secured to the end of ajournal, intermediate portions of lesser width than and ofiset laterallyfrom said base portion and parallel thereto, said blade portions beingparallel to said base portion and offset from said base an amount lessthan said intermediate portions, the portions joining said base andintermediate portions being gently curved throughout substantially theirentire length and progressively decreasing in width from said basetoward said intermediate portions.

THOMAS E. NEWBERRY.

